This is the new word for ‘vowel’. In the phonology, I described vowels as a type of jasāorīke. ansāorīki anpōhi are the stops*, ansāorīki ankōrji the fricatives, ansāorīki antāni the sonorants, and ansāorīki anūrāni the vowels. While ansāorīki anūrāni is still one way to refer to vowels, the more common term is anrūēli for the set of vowels.
temme ē jaþēλi ien jakā ānen ansāorīki ien jaxūna ānen anrūēli ī xiēn jē jāxīsse jīlke ī jāo ja la sūjatā ē jāo sūjōl ien jiēxa ānen jasēsi ī jōrrisi ē jatatēn ien ñi jīlkena cē jaþārre ōrra ē jawāññerāñi jīþi nā ī;
So, the next ien phrase jaxūna ānen anrūēli is ‘pattern of vowels’. I should note that I am using ānen here as an instrumentative preposition. So, the pattern used by or made by vowels might be more accurate.
He said to him the ideas: the doings of consonants; the pattern of vowels, …
* While s is actually a fricative, it is classed with the stops, probably because it used to be an affricate ts.